Hello, I use sysroot
ftp://ftp.denx.de/pub/eldk/5.6/targets/mcvevk/core-image-lsb-sdk-mcvevk.tar.bz2
and DENX_MCV_reference C2
I try to get access to PIO IOB5A through /dev/mem
#define MAP_PIO_BASE_ADDR (0xFF200000) ///< lwAxiMaster Base
Address
#define MAP_PIO_SIZE (0x00100000)
#define IOB5A_OFFS (0x000800C0) // GPIO IOB5A offset
from lwAxiMaster Base Address
int fd = open("/dev/mem", O_RDWR|O_SYNC);
unsigned int * mem_ptr = (unsigned int*)mmap(NULL, MAP_PIO_SIZE,
PROT_READ|PROT_WRITE, MAP_SHARED, fd, MAP_PIO_BASE_ADDR);
io_val = mem_ptr[IOB5A_OFFS/sizeof(unsigned int)];
And here I've got Bus error with
Unhandled fault: external abort on non-linefetch (0x018) at 0xb6c590c0
Do core-image-lsb-sdk-mcvevk.tar.bz2 supports HPS PIO of
DENX_MCV_reference C2 ?
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